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← Document results/DEP Box 25/GCMS X 5/3/02 A 5/7/02
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GCMS analysis results for sample AE10609, May 10 2002

Machine-extracted title · confidence 100%

Laboratory report detailing GC/MS analysis of sample AE10609 including surrogate recovery data in May 2002.

NYC-WTC_000045643–000045661

Folder label: “GCMS X 5/3/02 A 5/7/02”

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NYC 9/11 Public Portal Document Library Search Compound Report

Data File C:\MSDCHEM\l\DATA\050702\10609.D Vial: 12 Acq On 7 May 2002 10:06 pm Operator: Mclean Sample 5/3 kb Inst Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.e

Quant Method : C:\MSDCHEM\1\METHODS\050102.M (Chemstation Integrator) Title : 508 Modified GC/MS scan Library : C:\DATABASE\NIST98.L

Peak Number 9 3 -Isopropoxy-1,1,1,7,7,7-he... Concentration Rank 10

R.T. EstConc Area Relative to ISTD R.T. 22.80 0.24 ug/L 276060 Phenanthranene-dl0 22.96 Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 3-Isopropoxy-1,1,1,7,7,7-hexamet. . . 576 C18H5207Si7 071579-69-6 47 2 l,l,l,5,7,7,7-Heptamethyl-3,3-bi... 444 C13H40O5Si6 038147-00-1 45 3 3-Trimethylsilyloxystearic acid,... 444 C24H5203Si2 1000079-42-6 " 2 4 3-(3-Hydroxyphenyl)-3-hydroxypro.. . 398 C18H3404Si3 1000071-69- 25 Abundance Scan 3357 (22.803 min): 10609.D (-3348) (-) m/z 73.10 100.00% 73

5000 147 221 i ■ ■ ■ ■ i ■ ■ 281 355 429 22.40 22.60 22.80 23.00 23.20 43 ............................ 11 . b I .......... I ..................... ,I ,l,............ I ' ' ' ' I ' ' 1 1 I ' 1 1 1 i ■ ' ' 1 i 1 1 ■ ' i ' ' ' 1 I 1 ■ r ' i ' 1 1 1 i ' ' T 1 i 1 1 1 1 i 1 1 1 1 I 1 ' ............................ m/z 147.00 32.46% mz->0 50 100 150 200 250 300 350 400 450 500 550 Abundance #26784: 3-lsopropoxy-1,1,1,7,7,7-hexamethyl-3,5,5-tris(tri... 73

5000 147 -M 22.40 22.60 22.80 23.00 23.20 43 m/z 221.10 28.76% 221 281 097 AE I I ifpd 1 I I I I — I I | 1 1 1 r | i l 1 1 ' | 1 I I r r | 1 327 >| । | ' 1 ' । | 415 11 1 1 | kI I I | 519 561 I 1 I ' I" | ' I' I

m/z-> (0 50 100 150 200 250 300 350 400 450 500 550 Abundance #26950:1,1,1,5,7,7,7-Heptamethyl-3,3-bis(trimethylsiloxy)... 73 ........... l\.............. । 1 1 ■ ■ । 1 1 1 1 । 1 1 ' 1 । ' ' 1 1 । 1 1 147 22.40 22.60 22.80 23.00 23.20 267 m/z 429.10 12.92% 5000 355 429 45 207

1t.r ■ ■ i ■ । - I > ■ ■ ■ I r ■ • ■ i 1 ■ ■ ■ । ■ ■ ■ ■ । > 1 1 I 1 । । । I 1 । 1 J ' ’ 1 'T1 1 1 ' 1 1 1 n/z-> o 50 100 150 200 250 300 350 400 450 500 550 Abundance #26930: 3-Trimethylsilyloxystearic acid, trimethylsilyl ester — |"IIIII‘ 1 ■ i ■ 1 1 ' i ' 1 73 22.40 22.60 22.80 23.00 23.20 m/z 207.00 11.44%

5000 147 233

43 429 313 189 । ,4 4 117 ! I I 339 387 I /z-> 0 50 100 150 200 250 300 350 400 450 500 550 22.40 22.60 22.80 23.00 23.20

10609.D 050102.M Thu May 09 09:14:14 2002 Page 12

NYC-WTC_000045659

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NYC-WTC_000045659Source: NYC Law Department, mirrored locally

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Gas chromatography-mass spectrometry analysis report for sample AE09968, detecting unknown compounds and 2,4-DDD surrogate with 78% recovery, dated May 9, 2002.

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